The segregation of lambs into 'responders' and 'non-responders': response to vaccination with irradiated Trichostrongylus colubriformis larvae before weaning.

@article{Windon1980TheSO,
  title={The segregation of lambs into 'responders' and 'non-responders': response to vaccination with irradiated Trichostrongylus colubriformis larvae before weaning.},
  author={R. G. Windon and J. K. Dineen and John D. Kelly},
  journal={International journal for parasitology},
  year={1980},
  volume={10 1},
  pages={
          65-73
        }
}
Abstract Random bred Merino ram and ewe lambs were vaccinated at 1, 2 and/or 3 months of age with irradiated T. colubriformis larvae. An exponentially increasing challenge of normal larvae was given to all groups including unvaccinated controls commencing at 1 month of age. The results, based on faecal egg counts, showed a dissociation into animals which responded to vaccination (geometric mean egg count 441) and those which did not (geometric mean egg count 1567). The proportion of responders… CONTINUE READING